Jolida Jd 402A Vacuum Tube Stereo Fm Tuner Stereo audio signal amplification with two 12AX7 and two 12AT7 vacuum tubes. Crystal phase loop lock and AM/FM signal frequency synthesizing for stable reception. Low S/N signal to noise ratio for high signal sensitivity and selectivity. 99 station presets for both AM and FM. Full function Remote Control Automatic station scanning with a noise reduction function.